ABSTRACT
Industrial hygienists o–en measure a worker’s exposure to industrial air contaminants by sampling the air he or she breathes. A small, battery-powered pump draws a known ¢ow rate of air through a lter or other collection medium for a measured period of time. e collection medium is analyzed to quantify the contaminant collected and to compute the average exposure for the sampling period. Although these results indicate the extent of exposure, integrated air sampling provides little insight into the specic causes of the worker’s exposure.
